Device for opening containers, boxes, tins, or the like



Feb. 26, 1929. r B. POLAK DEVICE FOR OPENING CONTAINERS, BOXES, TINS, ORTHE LIKE Filed Jan. 17, 1928 9 44. 2 a a. a 5 T M i H ,0 w 9 m aPatented Feb. 26, 1929.

PATENT OFFICE.

BOHUMIL 201.1, or PRAGUE, ozEcnosLovAxm.

DEVICE FOR OPENING CONTAINERS, BOXES, TINS, OR THE LIKE.

Application filed January 17, 1928, Serial No. 247,391, and in GermanyMay 27, 1927.

This invention concerns improvements in or relating to devices foropening containers, boxes, tins or the like.

An embodiment of the invention is illustrated in. the accompanyingdrawing in which:

Fig. 1 is asection on the line 11 in Fig. 2, Fig. 2 is a horizontalprojection, and Fig. 3 a section on the line 33 in Fig. 2. Referring tothe drawing the opener consists of an ovalstrip of sheet metal a with Ia raised central portion 6 of oval shape and is provided with an opening0 to accommodate a hollow rivet for the purpose of securing the openerto the lower portion of the container. The opener is providedwith apressed out peripheral groove fraround the entire circumference of theraised middle portion 6 by means of which it engages with the edge ofthe cover. The edge g of the opener is turned over along the wholecircumference approximately at right angles in the opposite direction tothat in which the middle portion 6 protrudes, thus stiffening up thestructure and removing the possibility of the operator cutting his handson the edge of the opener.

A small flat surface extending to the edge only of the closed cover ispressed up in the lower part of the container when the same is 3perforated, for this opener, so that'the tightness of the cover is asperfect as that of containers not provided with an opener.

Having now particularly described and ascertained the nature of myinvention and in What manner the same is to be performed, I declare thatwhat I claim is:

Device for opening containers, boxes, tins or the like, consisting of aflat pivoted member having a raised central portion with a peripheralgroove which is adapted to engage with and lift up the edge of the lidof the container, and further having the edge turned over along thewhole circumference approximately at right angles in the oppositedirection to that in which the middle portion protudes. V

In testimony whereof I have signed my name to this specification.

BOHUMIL POLAK.

